@article{MAKHILLJAVA201211203807, title = {Prokaryotic Expression of p1 Gene of Yersinia ruckeri Isolated from Channel Catfish (Ictalunes punctatus) and Optimization of Expression Conditions}, journal = {Journal of Animal and Veterinary Advances}, volume = {11}, number = {20}, pages = {3800-3805}, year = {2012}, issn = {1680-5593}, doi = {javaa.2012.3800.3805}, url = {https://makhillpublications.co/view-article.php?issn=1680-5593&doi=javaa.2012.3800.3805}, author = {Kai-Yu,Hai,De-Fang,Jun,Ling-Yuan and}, keywords = {Yersinia ruckeri,p1 gene,prokaryotic expression,optimization,China}, abstract = {The p1 gene of Yersinia ruckeri (yrp1) which was isolated from channel catfish was amplified by PCR with specific primers and inserted into pMD19-T vector. The positive recombinant plasmid was selected and sequenced. Then, the yrp1 gene was subcloned into pET-32a (+) vector and transformed into BL21 (DE3) followed by induction with IPTG and detection with SDS-PAGE. Optimization of the induction conditions were conducted. The results showed that the recombinant protein with a molecular mass of about 72 kDa was mostly packaged into inclusion bodies. The optimization of induction process conditions led us to perform the fusion protein induction at 37°C for 4 h with 0.8 mM IPTG.} }